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Roles of autophagy in HIV-1 infection

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Please use this identifier to cite or link to this item: http://hdl.handle.net/1928/13135

Roles of autophagy in HIV-1 infection

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Title: Roles of autophagy in HIV-1 infection
Author: Dinkins, Christina
Advisor(s): Deretic, Vojo
Committee Member(s): Hartley, Rebecca
Hu, Chien-An
Chackerian, Bryce
Antonito, Panganiban
Peabody, David
Department: University of New Mexico. Biomedical Sciences Graduate Program
Subject(s): autophagy
HIV
Nef
RhTRIM5α
Degree Level: Doctoral
Abstract: Human immunodeficiency virus type 1 (HIV-1) chronically infects approximately 30 million people worldwide. HIV-1 has become one of the most difficult viral infections to treat due to its high mutability and emerging drug resistance. Critical to our development of more effective therapeutic treatments, we must better understand the HIV life cycle in order to reveal better targets for drug development. Thus, the purpose of this work was to investigate the role of autophagy, a cellular homeostatic mechanism capable of eliminating intracellular pathogens, in HIV-1 infection of two relevant hosts, the human and the Old World non-permissive primate, the rhesus macaque. The ability of autophagy to eliminate HIV-1 in these two species was compared with the objective of identifying why rhesus macaques efficiently eliminate HIV-1 and humans do not. Here we report that human cells have lost autophagic protection against HIV, and identify a role for autophagy in supporting HIV-1 biogenesis and egress from human macrophages. We further identify the rhesus macaque restriction factor, rhesus TRIM5α, as a major player in targeting HIV-1 for degradation through p62-dependent recognition and capture by the autophagy machinery.
Graduation Date: July 2011
URI: http://hdl.handle.net/1928/13135

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